| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.49 | 0.48 | 0.01 |
| Feb | 0.58 | 0.55 | 0.03 |
| Mar | 0.90 | 0.90 | 0.00 |
| Apr | 1.80 | 1.74 | 0.06 |
| May | 3.16 | 3.24 | -0.08 |
| Jun | 3.66 | 3.64 | 0.02 |
| Jul | 3.22 | 3.30 | -0.08 |
| Aug | 2.47 | 2.56 | -0.09 |
| Sep | 2.19 | 2.22 | -0.03 |
| Oct | 1.90 | 1.86 | 0.04 |
| Nov | 0.70 | 0.67 | 0.03 |
| Dec | 0.59 | 0.58 | 0.01 |
21.66 | 21.74 | -0.08 |